Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis

Negative impacts of chemicals are documented in the environment, but a shortage exists in bioremediation studies for residues of such chemicals in aquatic systems. This study focused on the effects of Ethidium Bromide (EtBr) on fry of Oreochromis niloticus and the role of Spirulina platensis (SP) as...

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Main Authors: Alaa El-Din Salah El-Din, Sabreen Abdullah, Alaa El-Din H. Sayed
Format: Article
Language:English
Published: Elsevier 2021-09-01
Series:Scientific African
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2468227621002659
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author Alaa El-Din Salah El-Din
Sabreen Abdullah
Alaa El-Din H. Sayed
author_facet Alaa El-Din Salah El-Din
Sabreen Abdullah
Alaa El-Din H. Sayed
author_sort Alaa El-Din Salah El-Din
collection DOAJ
description Negative impacts of chemicals are documented in the environment, but a shortage exists in bioremediation studies for residues of such chemicals in aquatic systems. This study focused on the effects of Ethidium Bromide (EtBr) on fry of Oreochromis niloticus and the role of Spirulina platensis (SP) as a bioremediation agent. Five groups of fish were divided into (1) control, and four treatment groups: (2)10 µg L − 1 EtBr, (3)10 µg L − 1 EtBr with 200 mg L − 1 SP, (4)100 µg L − 1 EtBr, and (5)100 µg L − 1 EtBr with 200 mg L − 1 SP for 15 days. Antioxidant biomarkers–total antioxidant capacity; TAC, Superoxide dismutase; SOD, and catalase; CAT–were assessed. Exposure to EtBr led to a decrease in TAC after exposure to 100 µg L − 1 EtBr and 100 µg L − 1 EtBr +200 mg L − 1 SP. No significant change in SOD and CAT activity was observed compared with control fish, except for fish treated with 100 µg L − 1 EtBr. This treatment induces an increase in activity of SOD and CAT. DNA fragmentation increased significantly after exposure to EtBr alone and this increase was counteracted by combined exposure to SP. Exposure to EtBr induced alteration in antioxidant capacity and DNA damage. SP protects against these negative impacts.
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spelling doaj.art-8646dcdb8e584102942a581fa1b15af62022-12-21T21:25:40ZengElsevierScientific African2468-22762021-09-0113e00961Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina PlatensisAlaa El-Din Salah El-Din0Sabreen Abdullah1Alaa El-Din H. Sayed2Zoology Department, Faculty of Science, Aswan University, Aswan, EgyptZoology Department, Faculty of Science, Aswan University, Aswan, EgyptZoology Department, Faculty of Science, Assuit University, Assiut 71516, Egypt; Corresponding author.Negative impacts of chemicals are documented in the environment, but a shortage exists in bioremediation studies for residues of such chemicals in aquatic systems. This study focused on the effects of Ethidium Bromide (EtBr) on fry of Oreochromis niloticus and the role of Spirulina platensis (SP) as a bioremediation agent. Five groups of fish were divided into (1) control, and four treatment groups: (2)10 µg L − 1 EtBr, (3)10 µg L − 1 EtBr with 200 mg L − 1 SP, (4)100 µg L − 1 EtBr, and (5)100 µg L − 1 EtBr with 200 mg L − 1 SP for 15 days. Antioxidant biomarkers–total antioxidant capacity; TAC, Superoxide dismutase; SOD, and catalase; CAT–were assessed. Exposure to EtBr led to a decrease in TAC after exposure to 100 µg L − 1 EtBr and 100 µg L − 1 EtBr +200 mg L − 1 SP. No significant change in SOD and CAT activity was observed compared with control fish, except for fish treated with 100 µg L − 1 EtBr. This treatment induces an increase in activity of SOD and CAT. DNA fragmentation increased significantly after exposure to EtBr alone and this increase was counteracted by combined exposure to SP. Exposure to EtBr induced alteration in antioxidant capacity and DNA damage. SP protects against these negative impacts.http://www.sciencedirect.com/science/article/pii/S2468227621002659TilapiaEthidium bromideSpirulina platensisAntioxidant biomarkersDNA damage
spellingShingle Alaa El-Din Salah El-Din
Sabreen Abdullah
Alaa El-Din H. Sayed
Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
Scientific African
Tilapia
Ethidium bromide
Spirulina platensis
Antioxidant biomarkers
DNA damage
title Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
title_full Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
title_fullStr Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
title_full_unstemmed Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
title_short Antioxidant capacity and DNA damage in Nile tilapia (Oreochromis niloticus) exposed to Ethidium bromide: A protective role for Spirulina Platensis
title_sort antioxidant capacity and dna damage in nile tilapia oreochromis niloticus exposed to ethidium bromide a protective role for spirulina platensis
topic Tilapia
Ethidium bromide
Spirulina platensis
Antioxidant biomarkers
DNA damage
url http://www.sciencedirect.com/science/article/pii/S2468227621002659
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